Awesome slideshow from Scientific American on the good, the bad, and the sometimes ugly inventions of 1865!
Elevated Train Narrow cars on upper and lower tracks let light into surrounding buildings and ran on a pulley system. Mr. P. Andrew of Cincinatti devised a nice system for 1865 except that the tiny 12-person capacity of each car is about one-twentieth the size of a New York City subway car in 2015.
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